./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/addsub_float_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12de589994efba7ef02a09446e6dcc495aa77e08 ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12de589994efba7ef02a09446e6dcc495aa77e08 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:17:54,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:17:54,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:17:54,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:17:54,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:17:54,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:17:54,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:17:54,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:17:54,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:17:54,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:17:54,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:17:54,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:17:54,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:17:54,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:17:54,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:17:54,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:17:54,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:17:54,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:17:54,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:17:54,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:17:54,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:17:54,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:17:54,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:17:54,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:17:54,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:17:54,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:17:54,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:17:54,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:17:54,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:17:54,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:17:54,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:17:54,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:17:54,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:17:54,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:17:54,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:17:54,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:17:54,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:17:54,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:17:54,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:17:54,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:17:54,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:17:54,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:17:54,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:17:54,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:17:54,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:17:54,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:17:54,957 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:17:54,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:17:54,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:17:54,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:17:54,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:17:54,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:17:54,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:17:54,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:17:54,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:17:54,960 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:17:54,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:17:54,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:17:54,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:17:54,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:17:54,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:17:54,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:17:54,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:17:54,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:17:54,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:17:54,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:17:54,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:17:54,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:17:54,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:17:54,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:17:54,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:17:54,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-10-24 14:17:55,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:17:55,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:17:55,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:17:55,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:17:55,455 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:17:55,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-10-24 14:17:55,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c40f638df/ba5f5c2640cc425b9f9bd59d6eeaa679/FLAG87a81fd42 [2020-10-24 14:17:56,229 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:17:56,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-10-24 14:17:56,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c40f638df/ba5f5c2640cc425b9f9bd59d6eeaa679/FLAG87a81fd42 [2020-10-24 14:17:56,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c40f638df/ba5f5c2640cc425b9f9bd59d6eeaa679 [2020-10-24 14:17:56,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:17:56,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:17:56,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:17:56,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:17:56,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:17:56,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:56,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba149c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56, skipping insertion in model container [2020-10-24 14:17:56,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:56,679 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:17:56,720 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:17:56,889 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:17:56,900 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:17:56,917 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:17:56,934 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:17:56,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56 WrapperNode [2020-10-24 14:17:56,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:17:56,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:17:56,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:17:56,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:17:56,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:56,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:56,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:17:56,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:17:56,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:17:56,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:17:56,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:56,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:56,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:56,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:56,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:57,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:57,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... [2020-10-24 14:17:57,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:17:57,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:17:57,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:17:57,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:17:57,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:17:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:17:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:17:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:17:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:17:57,292 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:17:57,293 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:17:57,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:17:57 BoogieIcfgContainer [2020-10-24 14:17:57,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:17:57,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:17:57,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:17:57,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:17:57,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:17:56" (1/3) ... [2020-10-24 14:17:57,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc8c190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:17:57, skipping insertion in model container [2020-10-24 14:17:57,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:17:56" (2/3) ... [2020-10-24 14:17:57,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc8c190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:17:57, skipping insertion in model container [2020-10-24 14:17:57,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:17:57" (3/3) ... [2020-10-24 14:17:57,305 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-10-24 14:17:57,321 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:17:57,326 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:17:57,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:17:57,402 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:17:57,402 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:17:57,405 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:17:57,405 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:17:57,406 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:17:57,406 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:17:57,406 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:17:57,406 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:17:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 14:17:57,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:17:57,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:57,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:17:57,459 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:17:57,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:57,473 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-24 14:17:57,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:17:57,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395005552] [2020-10-24 14:17:57,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:17:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:17:57,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:17:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:17:57,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:17:57,777 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:17:57,778 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:17:57,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:17:57,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:17:57 BoogieIcfgContainer [2020-10-24 14:17:57,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:17:57,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:17:57,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:17:57,824 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:17:57,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:17:57" (3/4) ... [2020-10-24 14:17:57,832 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:17:57,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:17:57,837 INFO L168 Benchmark]: Toolchain (without parser) took 1215.15 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 16.0 MB in the beginning and 24.9 MB in the end (delta: -8.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:17:57,841 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 39.8 MB. Free memory was 25.1 MB in the beginning and 25.1 MB in the end (delta: 20.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:17:57,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.31 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 15.3 MB in the beginning and 26.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:17:57,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.12 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 24.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:17:57,847 INFO L168 Benchmark]: Boogie Preprocessor took 24.95 ms. Allocated memory is still 50.3 MB. Free memory was 24.5 MB in the beginning and 23.7 MB in the end (delta: 882.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:17:57,848 INFO L168 Benchmark]: RCFGBuilder took 290.33 ms. Allocated memory is still 50.3 MB. Free memory was 23.5 MB in the beginning and 25.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:17:57,850 INFO L168 Benchmark]: TraceAbstraction took 522.74 ms. Allocated memory is still 50.3 MB. Free memory was 25.2 MB in the beginning and 25.3 MB in the end (delta: -151.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:17:57,852 INFO L168 Benchmark]: Witness Printer took 10.33 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 24.9 MB in the end (delta: 449.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:17:57,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 39.8 MB. Free memory was 25.1 MB in the beginning and 25.1 MB in the end (delta: 20.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.31 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 15.3 MB in the beginning and 26.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.12 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 24.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.95 ms. Allocated memory is still 50.3 MB. Free memory was 24.5 MB in the beginning and 23.7 MB in the end (delta: 882.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 290.33 ms. Allocated memory is still 50.3 MB. Free memory was 23.5 MB in the beginning and 25.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 522.74 ms. Allocated memory is still 50.3 MB. Free memory was 25.2 MB in the beginning and 25.3 MB in the end (delta: -151.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 10.33 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 24.9 MB in the end (delta: 449.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 13, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 16. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L6] COND TRUE !(cond) [L3] __assert_fail("0", "addsub_float_exact.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:18:00,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:18:00,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:18:00,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:18:00,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:18:00,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:18:00,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:18:00,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:18:00,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:18:00,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:18:00,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:18:00,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:18:00,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:18:00,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:18:00,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:18:00,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:18:00,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:18:00,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:18:00,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:18:00,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:18:00,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:18:00,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:18:00,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:18:00,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:18:00,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:18:00,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:18:00,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:18:00,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:18:00,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:18:00,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:18:00,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:18:00,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:18:00,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:18:00,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:18:00,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:18:00,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:18:00,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:18:00,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:18:00,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:18:00,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:18:00,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:18:00,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:18:00,852 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:18:00,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:18:00,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:18:00,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:18:00,858 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:18:00,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:18:00,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:18:00,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:18:00,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:18:00,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:18:00,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:18:00,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:18:00,863 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:18:00,863 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:18:00,863 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:18:00,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:18:00,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:18:00,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:18:00,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:18:00,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:18:00,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:18:00,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:18:00,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:18:00,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:18:00,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:18:00,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:18:00,867 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:18:00,867 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:18:00,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:18:00,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:18:00,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:18:00,868 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-10-24 14:18:01,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:18:01,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:18:01,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:18:01,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:18:01,314 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:18:01,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-10-24 14:18:01,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/056449f32/5a51587086d2418f941768bfaa1181bf/FLAG5b98259db [2020-10-24 14:18:01,995 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:18:01,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-10-24 14:18:02,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/056449f32/5a51587086d2418f941768bfaa1181bf/FLAG5b98259db [2020-10-24 14:18:02,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/056449f32/5a51587086d2418f941768bfaa1181bf [2020-10-24 14:18:02,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:18:02,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:18:02,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:18:02,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:18:02,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:18:02,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2fc4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02, skipping insertion in model container [2020-10-24 14:18:02,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,413 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:18:02,430 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:18:02,658 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:18:02,678 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:18:02,697 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:18:02,717 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:18:02,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02 WrapperNode [2020-10-24 14:18:02,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:18:02,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:18:02,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:18:02,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:18:02,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:18:02,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:18:02,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:18:02,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:18:02,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... [2020-10-24 14:18:02,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:18:02,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:18:02,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:18:02,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:18:02,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:18:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:18:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:18:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:18:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:18:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:18:03,194 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:18:03,195 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:18:03,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:18:03 BoogieIcfgContainer [2020-10-24 14:18:03,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:18:03,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:18:03,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:18:03,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:18:03,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:18:02" (1/3) ... [2020-10-24 14:18:03,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7945080e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:18:03, skipping insertion in model container [2020-10-24 14:18:03,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:02" (2/3) ... [2020-10-24 14:18:03,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7945080e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:18:03, skipping insertion in model container [2020-10-24 14:18:03,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:18:03" (3/3) ... [2020-10-24 14:18:03,210 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-10-24 14:18:03,225 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:18:03,231 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:18:03,264 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:18:03,342 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:18:03,343 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:18:03,346 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:18:03,346 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:18:03,347 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:18:03,347 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:18:03,347 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:18:03,348 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:18:03,386 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 14:18:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:18:03,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:18:03,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:18:03,405 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:18:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:18:03,430 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-24 14:18:03,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:18:03,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420442797] [2020-10-24 14:18:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 14:18:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:18:03,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-24 14:18:03,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:18:03,881 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:18:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:18:03,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:18:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:18:04,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420442797] [2020-10-24 14:18:04,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:18:04,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:18:04,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179980518] [2020-10-24 14:18:04,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:18:04,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:18:04,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:18:04,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:18:04,354 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-10-24 14:18:04,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:18:04,473 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-24 14:18:04,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:18:04,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-10-24 14:18:04,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:18:04,485 INFO L225 Difference]: With dead ends: 14 [2020-10-24 14:18:04,486 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:18:04,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:18:04,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:18:04,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:18:04,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:18:04,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:18:04,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-24 14:18:04,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:18:04,520 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:18:04,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:18:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:18:04,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:18:04,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:18:04,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:18:04,808 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:18:04,808 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:18:04,808 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:18:04,808 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:18:04,809 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 14:18:04,809 INFO L270 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= roundNearestTiesToEven ~CRM)) [2020-10-24 14:18:04,809 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-24 14:18:04,809 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-10-24 14:18:04,809 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 14:18:04,810 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= roundNearestTiesToEven ~CRM)) [2020-10-24 14:18:04,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:04,826 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:04,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:04,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:04,831 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:04,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:04,832 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:04,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:04,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:18:04 BoogieIcfgContainer [2020-10-24 14:18:04,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:18:04,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:18:04,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:18:04,838 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:18:04,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:18:03" (3/4) ... [2020-10-24 14:18:04,843 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:18:04,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 14:18:04,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:18:04,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 14:18:04,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:18:04,905 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:18:04,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:18:04,909 INFO L168 Benchmark]: Toolchain (without parser) took 2530.44 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.1 MB in the beginning and 31.1 MB in the end (delta: -12.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:18:04,909 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory is still 26.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:18:04,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.28 ms. Allocated memory is still 41.9 MB. Free memory was 18.5 MB in the beginning and 21.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:04,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 41.9 MB. Free memory was 21.8 MB in the beginning and 20.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:04,913 INFO L168 Benchmark]: Boogie Preprocessor took 35.10 ms. Allocated memory is still 41.9 MB. Free memory was 20.3 MB in the beginning and 19.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:18:04,914 INFO L168 Benchmark]: RCFGBuilder took 392.82 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.2 MB in the beginning and 27.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:04,915 INFO L168 Benchmark]: TraceAbstraction took 1637.48 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 33.5 MB in the end (delta: -6.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:04,916 INFO L168 Benchmark]: Witness Printer took 67.78 ms. Allocated memory is still 50.3 MB. Free memory was 33.5 MB in the beginning and 31.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:04,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory is still 26.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.28 ms. Allocated memory is still 41.9 MB. Free memory was 18.5 MB in the beginning and 21.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 41.9 MB. Free memory was 21.8 MB in the beginning and 20.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.10 ms. Allocated memory is still 41.9 MB. Free memory was 20.3 MB in the beginning and 19.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 392.82 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.2 MB in the beginning and 27.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1637.48 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 33.5 MB in the end (delta: -6.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Witness Printer took 67.78 ms. Allocated memory is still 50.3 MB. Free memory was 33.5 MB in the beginning and 31.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~CRM - GenericResult: Unfinished Backtranslation unknown boogie variable ~CRM - GenericResult: Unfinished Backtranslation unknown boogie variable ~CRM - GenericResult: Unfinished Backtranslation unknown boogie variable ~CRM * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant [2020-10-24 14:18:04,932 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:04,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:04,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:04,933 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && ~roundNearestTiesToEven == unknown-~CRM-unknown - InvariantResult [Line: 6]: Loop Invariant [2020-10-24 14:18:04,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:04,934 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:04,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:04,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && ~roundNearestTiesToEven == unknown-~CRM-unknown - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 8 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...